In the US - Billionaires have $1.3T: https://americansfortaxfairness.org/billionaires/
That's ~$3880 per US person. Globally, there's a lot more people, and countries aren't as rich as the US.
Even if you count their entire change in net wealth in good years as income - their best year ever - during the pandemic - Billionaire wealth increased $240B. That's not even $900 per person in the US. Median salary was almost $43k: https://en.m.wikipedia.org/wiki/Personal_income_in_the_Unite.... That's ~2%.
This is counting billionaire income and realized and unrealized capital gains - cherry picked to the best year ever. It's a massive overstatement.
Even if you cherry pick the best 11-year bull run ever - from 2010-2021 - Billionaire wealth increased $2.57T. That's $697 per year per person. Barely a 1.5% increase.
Even if you try to get exclusionary - let's only include workers - not children, retirees, or the disabled or the poor - you get ~$1400 per person per year - a ~3.3% increase.
And it's a ridiculous idea. If you took all their capital gains starting in 2010 - they wouldn't have compounded. Most of the gains wouldn't have occurred. You'd end up with an even smaller number less than 1% for everyone, less than 2% for workers.
It's not the reason people who work at Google and Intel aren't mega rich.
And even in the US, Billionaires are definitely not the reason that people who work minimum wage or don't work at all are poor.
Billionaires are concentrated disproportionately in rich places like the US and the EU. Globally the true picture disputes this article much more. There's 5x more people on the planet than in just the US and the EU - but the billionaires there have almost 70% of billionaire wealth.
Do billionaires have enough money that it's creating systematic problems and we should do something about it? That's a different question.
They don't have so much money that they're causing everyone else to be poor.